Interleukin 19 (IL-19) is a member of the IL-10 family of cytokines and is known as an inhibitory cytokine. IL-10, also an inhibitory cytokine, suppresses the receptor activator of nuclear factor κB (NF-κB) ligand (RANKL)-induced osteoclast differentiation. However, the effects of IL-19 on osteoclast differentiation are not currently well-understood. In this study, we examined whether IL-19 suppresses osteoclast differentiation in the mouse macrophage-like cell line RAW264.7. We found that IL-19 inhibited RANKL-induced osteoclast differentiation. In addition, IL-19 suppressed RANKL-induced NF-κB and p38 mitogen-activated protein kinase (p38MAPK) activation and c-Fos expression. Moreover, RANKL inhibited IL-19 mRNA expression and secretion in RAW264.7 cells, and the inhibition of the IL-19 function promoted osteoclast differentiation. https://www.selleckchem.com/products/pf-2545920.html These results indicate that IL-19 suppressed osteoclast differentiation via the inhibition of NF-κB and p38MAPK activation and c-Fos expression. Furthermore, IL-19 may maintain the osteoclast precursor state, such as monocytes and macrophages. These findings may be useful in the development of osteoclast inhibitors, thereby improving treatments for osteoclast activation-related diseases, such as osteoporosis.To determine the diagnostic operating characteristics of The Patient Reported Outcomes Measurement Information Systems (PROMIS) depression scales in screening for major depression.
Interview data from patients enrolled in clinical trials involving patients with chronic pain (2 trials) or post-stroke (1 trial) were analyzed. This included baseline and follow-up interviews in 648 and 586 study patients, respectively. Patients completed PROMIS depression scales of varying lengths (4-item, 6-item, and two 8-item scale versions) as well as the Patient Health Questionnaire 9-item (PHQ-9) depression scale. A Structured Clinical Interview for DSM Disorders (SCID) was administered to establish diagnoses of major depression and any depression. Sensitivity and specificity at various score cutpoints as well as area under the curve (AUC) were calculated.
PROMIS scales of varying lengths had similar diagnostic operating characteristics. The optimal screening cutpoint for PROMIS raw scores on the 4-, 6-, and 8-item scales was 8, 12, and 16, respectively, which corresponds to a PROMIS T-score of 55. The average sensitivity and specificity of the two PROMIS 8-item scales for major depression across the 3 trials using a T-score cutpoint ?55 was 0.81 and 0.84, respectively. This was almost identical to 0.81 and 0.82 for the PHQ-9 at its standard cutpoint score?10. The average AUC for major depression was identical (0.91) for the two PROMIS 8-item scales and PHQ-9, and also similar for any depression (0.87 to 0.89).
PROMIS scales ranging from 4 to 8 items have strong operating characteristics comparable to the PHQ-9 in screening for depression.
ClinicalTrials.gov ID NCT01236521, NCT01583985, NCT01507688.
ClinicalTrials.gov ID NCT01236521, NCT01583985, NCT01507688.Although microplastics are an emerging pollutant of global concern, little is known about the environmental behavior of microplastic in sediments. This study investigated the occurrence and seasonal variation of microplastics in the sediments of Liangfeng River, China with a fluorescence staining method, and then explored the transfer of microplastics at the water and sediment interfaces during resuspension. The results showed that smaller microplastics were detected in the sediments, which were concentrated in the size range of 50-500 μm. Microplastic abundance in the sediments in the dry season were slightly higher than those from the rainy season, and the rainy season promotes the accumulation of smaller microplastics in the sediment along the river-flow direction but not for the dry season. The shape of microplastics were predominantly fibers, followed by fragments and films. Polyethylene was the most abundant polymer, accounting for more than 50% of the total. Microplastics in the surface sediment move both to the overlying water and deeper sediment during the disturbance process. Disturbance-induced resuspension and vertical transport have significant effects on small-sized microplastics (50-500 μm). Small-sized microplastics can potentially migrate and redistribute via resuspension at different temporal and spatial scales, as some extent of resuspension is occurring in most river systems, especially in urban areas with boat traffic.Organophosphate esters (OPEs) have been detected at elevated concentrations in the Great Lakes region, dwarfing other flame retardants, such as polybrominated diphenylethers (PBDEs), as chemicals of emerging concern (CECs). This prompted us to deploy polyethylene (PE) passive samplers in air and water column of the lower Great Lake region (Lake Erie and Lake Ontario) to detect gaseous and dissolved OPEs, evaluate their occurrence and spatial distribution, and estimate their air-water gas exchange fluxes. The median concentration of the total dissolved and gaseous phase OPEs detected (Σ9OPEs) were 95 ng L-1 and 404 pg m-3, respectively, during April-November 2014. Gaseous and dissolved concentrations were dominated by chlorinated compounds, in particular (tris(2-chloroethyl) phosphate (TCEP) and tris(2-chloroisopropyl) phosphate (TCPP), while tri-n-butyl phosphate (TnBP) was the dominant non-chlorinated OPEs in both media. Decreasing concentration gradients from shoreline/nearshore to offshore sites for both gaseous and aqueous OPEs reflect anthropogenic influence from the adjacent rural and urban regions. The partial dependence of gaseous OPEs on temperature indicate the importance of volatilization from local sources, fresh emissions as well as advection from distant sources to air. Almost all OPEs underwent net gas-phase deposition to the lakes, dominated by TCEP and TCPPs with median fluxes of -3980 ng/m2/day and -1320 ng/m2/day; the exception was TnBP, which underwent volatilization with the median fluxes of 1980 ng/m2/day. For all air-water pairs, the gaseous diffusive fluxes were 2-4 orders of magnitude greater than the estimated particle dry deposition fluxes.